Eraser.



W. C. STEERS.'

ERASER.

APPLlCATION HLED MAR. n, 1918.

Patented Nov; 12, 1918..

INVENTOR. W 0 57555 WITNESS g j 1 ATTORNEY' inn-trap snares earner erriea.

wanna 0. screens, on sen" naaivcrsco, CALIFORNIA, Assmia oa or oxen-rotate seen 0. nna'r'ron AND ONE-FOURTH :ro WILLIAM G. Horseman, aorn ar sen,

rna'ivcisco, CALIFORNIA.

EEASEB.

To all whom it may concern:

Be it known that I, WALTE C; Srnnns, a citizen of the United States, and a resident of the city and county of San Francisco and State of California, have invented a new and useful Eraser, of which the following is a specification. v I

My invention relates to steel erasers.

An object of the invention is to provide an eraser having a readily renewable blade.

Another-object of my'invention is to pro- I vide an eraser having "'a blade with a plurality. of working edges, any one of which is available by inverting the eraser or revex-sing the blade.

My inventien possesses other features of advantage, "some of which, with the fore going, will beset forth in the'following description of the preferred form of my invention which is illustrated in the drawings accompanying and forming a part of the I specifications.

It is to be understood that I do not limit myself to the showing made by the said drawingsand description, as I may adopt variations of the preferre d form within the scope of my invention as set forth in the claims.

H Referring'to the drawings:

Figure 1 is a plan view of the eraser; Fig. 2 is a side view of the eraser; Fig. 3 is a plan view of the detachable blade of the eraser.

The. purpose of my" invention, broadly stated, is to provide an'eraser in which the handicap of frequently dulling the blades.v

is' lessened by the provlsion of a replaceable, reversible blade providing a plurality of sharp edges, anyone of which may be uickly made available without the necessity for using a sharpening stone. My invention comprises a handle, a replaceable, reversible and invertible blade and means for quickly inserting and'securi ng the blade in the handle.

The handle is preferably formed from a single piece of metal, by stamping and pressure in suitable dies, and consists of a flat piece, circularly bent or foldedrn the center 2 to give two resilient and resiliently attached leaves 3 and The folded leaves 3 and t are curved slightly away from each other through a portion of their length, and

near. their ends are curved sharplytoward each other as at 6, Fig. 2, and then extended 5% to form parallel jaws-7 and 8, between which jaws in perfect alinement.

Specification dftlettbrs retent Patented Nov; 12, 13.918. Application tied a es it; 1918; Serial no. 221,607.

the blade 9 is adapted to lie. A slot 11 is formed in each leaf of the handle in that portion diverging toward the curved portion 6 and an H form latch 12-is disposed in the ahned slots. By movement toward the the jaws, the latch clamps the jaws tightly upon the blade. By retracting the latch the aws separate by reason of the resiliency of the'leaves and particularly of the fold 2.

paratively only a small portion of the blade is exposed whenit is 'securedin the jaws,

and therefore, the jaws are preferably rounded on their outer faces and the edges 16, made quite thin.

Means are preferably provided 1 for securing the blade between the jaws inaddition to the mere clamping action thereof.

Pins 17 are rigidly fixed in the jaw "7 and adapted to seat in shallow recesses in the jawS. The blade 9 is provided with apertures 18, symmetrically placed so that the blade may be inserted between the jaws; with either end exposed, thepins fitting in' the apertures and fixing the position of the blade. The pins also aid in keeping .the The shape of the jaws and the position of the pins 17 is such that only one point of the blade and about two-thirds of each edge is exposed beyond the edges 16 of the jaws.

Although. the blade is formed with two curved sharp edges, four scraping edges 19, 20, 21, 22,.as shown in Fig. 3,'ar e provided. When the blade is held in the jaws of the handle as shown in Fig. '1, either of the two edges, 19 and 20, are instantly available by merely. inverting the eraser in the hand, which of course also inverts the blade, and

ion

by releasing the latch and reversing the blade in the jaws, the edges 21 and 22 are available. In the claims to follow, I shall use the terms invertible and reversible in the senses just definedr filo i I claim:

1. An eraser .compi i'sing a folded metalhe strip. formed "with an eye 1n the fold thereof to add resiliency thereto, a detachable blade bounded by two ,eurved edges meeting in two points and adapted to be held in said handleyend means slidnbl'e on. said handle for clamping it to said blade.

2. An eraser comprising a handle formed of a resiliently folded metallic strip'- terminatin' in. opposed jaws, a replaceable,

,reversib e and inyertible blede'having two curved edges meeting in two points, and

adapted to be heldbetween said jaws with one-of its points and a portion of each edge exposed; and means slidable on said handle to clamp said jaws together to hold saidlolz dei or'to permit said jaws to open, to release said blade.

this 4th day oflllareh 1918.

nee less 3. An eraser comprising a folded metallic strip provided with a slot in'e'a'eh leaf'theie' of and formed with an eye in the fold thereof to add resilieney thereto, afpin in replaceable, soidel blade adept'ed to be held between the ends of said leaves and-having 'an'ape'ntnre therein through which said pinpasses Whenso held, and an i i-form inernber- .slidebl,

WALTER In presence .of--

C. S EVANS.

6. seems.-

engage a socket formed in "the other leaf, a reversible and invertible ellipe the end of one of said leavesada 'ted to 

